WO2004100286A3 - Composant de pile a combustible lyophile - Google Patents

Composant de pile a combustible lyophile Download PDF

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Publication number
WO2004100286A3
WO2004100286A3 PCT/US2004/013559 US2004013559W WO2004100286A3 WO 2004100286 A3 WO2004100286 A3 WO 2004100286A3 US 2004013559 W US2004013559 W US 2004013559W WO 2004100286 A3 WO2004100286 A3 WO 2004100286A3
Authority
WO
WIPO (PCT)
Prior art keywords
component
fuel cell
lyophilic
cell component
iyophilic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2004/013559
Other languages
English (en)
Other versions
WO2004100286A9 (fr
WO2004100286B1 (fr
WO2004100286A2 (fr
Inventor
Charles W Extrand
Sanjiv M Bhatt
Loxie Monson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Entegris Inc
Original Assignee
Entegris Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Entegris Inc filed Critical Entegris Inc
Priority to JP2006514204A priority Critical patent/JP2006525646A/ja
Priority to DE112004000760T priority patent/DE112004000760T5/de
Priority to CA002524779A priority patent/CA2524779A1/fr
Publication of WO2004100286A2 publication Critical patent/WO2004100286A2/fr
Publication of WO2004100286A3 publication Critical patent/WO2004100286A3/fr
Publication of WO2004100286B1 publication Critical patent/WO2004100286B1/fr
Anticipated expiration legal-status Critical
Publication of WO2004100286A9 publication Critical patent/WO2004100286A9/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0221—Organic resins; Organic polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0226—Composites in the form of mixtures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0228—Composites in the form of layered or coated products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • H01M8/04171—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal using adsorbents, wicks or hydrophilic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0206—Metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0213—Gas-impermeable carbon-containing materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0215—Glass; Ceramic materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Fuel Cell (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

L'invention concerne un composant de pile à combustible comprenant des surfaces possédant une capacité de lyophilisation améliorée permettant au liquide se trouvant sur le composant de bien adhérer à la surface sous forme de gouttes ou de couches relativement plates. Les surfaces Iyophiles peuvent être formées d'une fine couche de polymère essentiellement Iyophile sur la surface du composant. Les surfaces lyophiles peuvent être formées de manière sélective sur des zones critiques du composant, comme par exemple les surfaces des parois des canaux d'écoulement de plaques bipolaires et d'ensembles d'électrodes à membrane, inhibant ainsi le blocage du liquide des canaux d'écoulement au cours de l'utilisation de la pile à combustible.
PCT/US2004/013559 2003-05-05 2004-05-03 Composant de pile a combustible lyophile Ceased WO2004100286A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006514204A JP2006525646A (ja) 2003-05-05 2004-05-03 親液性燃料電池構成部品
DE112004000760T DE112004000760T5 (de) 2003-05-05 2004-05-03 Lyophile Brennstoffzellen-Komponente
CA002524779A CA2524779A1 (fr) 2003-05-05 2004-05-03 Composant de pile a combustible lyophile

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US46821303P 2003-05-05 2003-05-05
US60/468,213 2003-05-05
US10/837,030 US20050008919A1 (en) 2003-05-05 2004-04-30 Lyophilic fuel cell component
US10/837,030 2004-04-30

Publications (4)

Publication Number Publication Date
WO2004100286A2 WO2004100286A2 (fr) 2004-11-18
WO2004100286A3 true WO2004100286A3 (fr) 2005-09-22
WO2004100286B1 WO2004100286B1 (fr) 2005-10-27
WO2004100286A9 WO2004100286A9 (fr) 2006-04-20

Family

ID=33436750

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/013559 Ceased WO2004100286A2 (fr) 2003-05-05 2004-05-03 Composant de pile a combustible lyophile

Country Status (6)

Country Link
US (1) US20050008919A1 (fr)
JP (1) JP2006525646A (fr)
KR (1) KR20060008981A (fr)
CA (1) CA2524779A1 (fr)
DE (1) DE112004000760T5 (fr)
WO (1) WO2004100286A2 (fr)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6723299B1 (en) 2001-05-17 2004-04-20 Zyvex Corporation System and method for manipulating nanotubes
US6905667B1 (en) 2002-05-02 2005-06-14 Zyvex Corporation Polymer and method for using the polymer for noncovalently functionalizing nanotubes
US20040034177A1 (en) 2002-05-02 2004-02-19 Jian Chen Polymer and method for using the polymer for solubilizing nanotubes
KR100827861B1 (ko) * 2003-05-22 2008-05-07 지벡스 퍼포먼스 머티리얼즈, 엘엘씨 나노복합물 및 이의 제조 방법
WO2005100466A1 (fr) * 2004-04-13 2005-10-27 Zyvex Corporation Procedes de synthese de poly(phenylene-ethynylenes) modulaires et de reglage fin des proprietes electroniques de ceux-ci pour la fonctionnalisation de nanomateriaux
US7296576B2 (en) * 2004-08-18 2007-11-20 Zyvex Performance Materials, Llc Polymers for enhanced solubility of nanomaterials, compositions and methods therefor
JP2006107989A (ja) * 2004-10-07 2006-04-20 Nichias Corp 燃料電池用セパレータ及びその製造方法
JP4828821B2 (ja) * 2004-12-27 2011-11-30 株式会社Ｆｊコンポジット 燃料電池セパレータの表面処理方法
US7622211B2 (en) 2005-06-01 2009-11-24 Gm Global Technology Operations, Inc. Hydrophilic fuel cell bipolar plate having a plasma induced polymerization coating
KR100760219B1 (ko) 2005-08-01 2007-10-05 연세대학교 산학협력단 로보 디스펜싱에 의한 전기화학적 셀의 제조방법, 그요소소재 페이스트, 및 이에 의해 제조된 고체산화물연료전지
CN101283470B (zh) * 2005-08-12 2012-04-04 通用汽车环球科技运作公司 用于燃料电池双极板的亲水涂层及其制备方法
DE112006002141B4 (de) * 2005-08-12 2020-10-15 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Verfahren zum Aufbringen einer hydrophilen Beschichtung auf Brennstoffzellen-Bipolarplatten
US7776249B2 (en) * 2005-08-30 2010-08-17 Gm Global Technology Operations, Inc. Method of making bipolar plate
US8211592B2 (en) * 2005-09-15 2012-07-03 GM Global Technology Operations LLC Hydrophilic layer on flowfield for water management in PEM fuel cell
FR2891403A1 (fr) * 2005-09-29 2007-03-30 St Microelectronics Sa Pile a combustible recouverte d'une couche de polymeres hydrophiles
KR101107076B1 (ko) * 2006-03-03 2012-01-20 삼성에스디아이 주식회사 연료 전지용 막-전극 어셈블리 및 이를 포함하는 연료 전지시스템
KR101181836B1 (ko) * 2006-04-28 2012-09-11 삼성에스디아이 주식회사 연료 전지용 세퍼레이터, 이의 제조 방법 및 이를 포함하는연료 전지 시스템
US7879389B2 (en) 2006-06-27 2011-02-01 GM Global Technology Operations LLC Low-cost bipolar plate coatings for PEM fuel cell
JP5130691B2 (ja) * 2006-10-25 2013-01-30 株式会社日立製作所 燃料電池モジュール構造
US8389047B2 (en) * 2006-12-21 2013-03-05 GM Global Technology Operations LLC Low-cost hydrophilic treatment method for assembled PEMFC stacks
US20090191351A1 (en) * 2008-01-28 2009-07-30 Gm Global Technology Operations, Inc. Fuel cell bipolar plate with variable surface properties
KR101000697B1 (ko) * 2008-07-17 2010-12-10 현대자동차주식회사 연료전지용 금속분리판 및 이의 표면층 형성 방법
JP5396048B2 (ja) * 2008-09-30 2014-01-22 株式会社日立製作所 固体高分子形燃料電池
US8304143B2 (en) * 2008-11-25 2012-11-06 GM Global Technology Operations LLC Conductive and hydrophilic coating for PEMFC bipolar plate
US8349517B2 (en) * 2009-04-23 2013-01-08 GM Global Technology Operations LLC Method of coating a surface of a fuel cell plate
US8685593B2 (en) * 2009-09-22 2014-04-01 GM Global Technology Operations LLC Carbon based bipolar plate coatings for effective water management
US9520600B2 (en) * 2009-09-22 2016-12-13 GM Global Technology Operations LLC Conductive and hydrophilic bipolar plate coatings and method of making the same
TWI394313B (zh) * 2009-10-12 2013-04-21 Toplus Energy Corp 燃料電池的導電雙極板
CN103531829B (zh) * 2013-10-22 2015-07-08 江苏中靖新能源科技有限公司 一种氢燃料电池极板及其制备方法
DE102014218382A1 (de) * 2014-09-12 2016-03-17 Volkswagen Aktiengesellschaft Bipolarplatte mit hydrophiler Beschichtung, Verfahren zu ihrer Herstellung sowie Brennstoffzelle mit einer solchen
KR101762506B1 (ko) * 2015-09-23 2017-07-27 한국전력공사 고효율 염수 전기분해 장치
LU502543B1 (en) 2022-07-21 2024-01-22 Otherwise Ltd Energy storage devices
CN116505049B (zh) * 2023-06-27 2023-09-12 杭州德海艾科能源科技有限公司 一种液流电池用一体化电芯及其制作方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08138692A (ja) * 1994-11-04 1996-05-31 Toyota Motor Corp 燃料電池
JP2000223131A (ja) * 1999-02-01 2000-08-11 Toyota Motor Corp 燃料電池およびこれに用いるセパレータ並びにこれらの製造方法
JP2000251903A (ja) * 1999-02-25 2000-09-14 Hitachi Chem Co Ltd 燃料電池用セパレータ及びその製造法並びに燃料電池用セパレータを用いた燃料電池
US20030138686A1 (en) * 2002-01-21 2003-07-24 Saori Kotani Fuel cell separator production method, fuel cell separators, and polymer electrolyte fuel cells
US20030194594A1 (en) * 2002-04-03 2003-10-16 Saori Nakajima Fuel cell separator. production method, and solid polymer fuel cells

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526583A (en) * 1967-03-24 1970-09-01 Eastman Kodak Co Treatment for increasing the hydrophilicity of materials
ES355157A1 (es) * 1967-06-08 1969-11-16 Western Electric Co Procedimiento para producir un revestimiento de polimero sobre un sustrato.
US3761299A (en) * 1970-10-13 1973-09-25 Eastman Kodak Co Treating polymeric surfaces
US3666533A (en) * 1970-11-16 1972-05-30 North American Rockwell Deposition of polymeric coatings utilizing electrical excitation
US3870610A (en) * 1972-03-09 1975-03-11 Grace W R & Co Cold plasma treatment of materials
US4188273A (en) * 1973-11-22 1980-02-12 Sumitomo Chemical Company, Limited Process for preparing novel thin films
US4013532A (en) * 1975-03-03 1977-03-22 Airco, Inc. Method for coating a substrate
US4188426A (en) * 1977-12-12 1980-02-12 Lord Corporation Cold plasma modification of organic and inorganic surfaces
US4422915A (en) * 1979-09-04 1983-12-27 Battelle Memorial Institute Preparation of colored polymeric film-like coating
US4988583A (en) * 1989-08-30 1991-01-29 Her Majesty The Queen As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Novel fuel cell fluid flow field plate
EP0527859B1 (fr) * 1990-05-10 1995-07-19 Eastman Kodak Company Appareil de traitement au plasma d'une matiere continue
US5355832A (en) * 1992-12-15 1994-10-18 Advanced Surface Technology, Inc. Polymerization reactor
DE4314745C1 (de) * 1993-05-04 1994-12-08 Fraunhofer Ges Forschung Brennstoffzelle
US5693241A (en) * 1996-06-18 1997-12-02 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Atmospheric pressure method and apparatus for removal of organic matter with atomic and ionic oxygen
US5858569A (en) * 1997-03-21 1999-01-12 Plug Power L.L.C. Low cost fuel cell stack design
US5798188A (en) * 1997-06-25 1998-08-25 E. I. Dupont De Nemours And Company Polymer electrolyte membrane fuel cell with bipolar plate having molded polymer projections
US6071635A (en) * 1998-04-03 2000-06-06 Plug Power, L.L.C. Easily-formable fuel cell assembly fluid flow plate having conductivity and increased non-conductive material
FR2779184B1 (fr) * 1998-05-26 2001-01-26 Marwal Systems Ensemble de puisage de carburant dans un reservoir de vehicule automobile
DE19910487C1 (de) * 1999-03-10 2000-06-15 Freudenberg Carl Fa Verfahren und Werkzeug zur Herstellung von Bipolarplatten
US6251308B1 (en) * 1999-03-19 2001-06-26 Premix Highly conductive molding compounds and fuel cell bipolar plates comprising these compounds
WO2002080295A2 (fr) * 2001-01-19 2002-10-10 World Properties Inc. Appareil et procede destines a des composants de cellules electrochimiques

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08138692A (ja) * 1994-11-04 1996-05-31 Toyota Motor Corp 燃料電池
JP2000223131A (ja) * 1999-02-01 2000-08-11 Toyota Motor Corp 燃料電池およびこれに用いるセパレータ並びにこれらの製造方法
JP2000251903A (ja) * 1999-02-25 2000-09-14 Hitachi Chem Co Ltd 燃料電池用セパレータ及びその製造法並びに燃料電池用セパレータを用いた燃料電池
US20030138686A1 (en) * 2002-01-21 2003-07-24 Saori Kotani Fuel cell separator production method, fuel cell separators, and polymer electrolyte fuel cells
US20030194594A1 (en) * 2002-04-03 2003-10-16 Saori Nakajima Fuel cell separator. production method, and solid polymer fuel cells

Also Published As

Publication number Publication date
KR20060008981A (ko) 2006-01-27
CA2524779A1 (fr) 2004-11-18
US20050008919A1 (en) 2005-01-13
JP2006525646A (ja) 2006-11-09
DE112004000760T5 (de) 2006-06-14
WO2004100286B1 (fr) 2005-10-27
WO2004100286A2 (fr) 2004-11-18

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